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Finding the Fourth Proportional to 32,638.70, 45,041.02 and 18,298.46

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Solution

The fourth proportional to 32,638.70, 45,041.02 and 18,298.46 is: 25,251.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,638.70 : 45,041.02 = 18,298.46 : x
  2. Step 2: Convert to fraction form
    32,638.70/45,041.02 = 18,298.46/x
  3. Step 3: Cross multiply
    32,638.70x = 45,041.02 × 18,298.46
  4. Step 4: Simplify right side
    32,638.70x = 824,181,302.83
  5. Step 5: Solve for x
    x = 824,181,302.83/32,638.70
  6. Step 6: Final answer
    x = 25,251.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.